M320 Mounting Hole Locations For Four-Post Racks Or Cabinets; Installing The M320 Mounting Hardware For A Four-Post Rack Or Cabinet; Table 18: Four-Post Or Cabinet Rack Mounting Hole Locations - Juniper M320 Hardware Manual

M320 Router Hardware Guide

M320 Mounting Hole Locations for Four-Post Racks or Cabinets

Related
Documentation

Installing the M320 Mounting Hardware for a Four-Post Rack or Cabinet

56
All manuals and user guides at all-guides.com
Table 18 on page 56 specifies the holes in which you insert mounting screws (an
a mounting hole location), and cage nuts if needed. The hole distances are relative to
one of the standard U divisions on the rack. The bottom of all mounting shelves is at
0.04 in. (0.02 U) above a U division.

Table 18: Four-Post or Cabinet Rack Mounting Hole Locations

Hole Distance Above U Division
51 29.51 in. (74.9 cm)
42 24.26 in. (61.6 cm)
33 19.01 in. (48.3 cm)
30 17.26 in. (43.8 cm)
24 13.76 in. (34.9 cm)
15 8.51 in. (21.6 cm)
6 3.26 in. (8.3 cm)
3 1.51 in. (3.8 cm)
2 0.88 in. (2.2 cm)
1 0.25 in. (0.6 cm)
M320 Site Preparation Checklist Requirements on page 41
To prepare to install the M320 router in a four-post rack or cabinet, you install the large
shelf and the spacer bars on the front rail, and the small mounting shelf on the rear rail
(see Figure 26 on page 57. You also remove the adjustable center-mounting brackets
from the chassis.
Large Spacer
Shelf Bars
16.86 U X
13.86 U
X
10.86 U
X
9.86 U
X
7.86 U
X
4.86 U
X
1.86 U
X
0.86 U
0.50 U X
0.14 U
Copyright © 2010, Juniper Networks, Inc.
X indicates
Small
Shelf
X
X
X